Power extension device



FIG. 1 is a perspective view of a first embodiment of an ornamentaldesign of a power extension device.

FIG. 2 is a right side view of the first embodiment of an ornamentaldesign of a power extension device.

FIG. 3 is a left side view of the first embodiment of an ornamentaldesign of a power extension device.

FIG. 4 is a front view of the first embodiment of an ornamental designof a power extension device.

FIG. 5 is a back view of the first embodiment of an ornamental design ofa power extension device.

FIG. 6 is a top view of the first embodiment of an ornamental design ofa power extension device.

FIG. 7 is a bottom view of the first embodiment of an ornamental designof a power extension device.

FIG. 8 is a perspective view of a second embodiment, substantiallyidentical to FIGS. 1 through 7 of the first embodiment but showing adifferent base, of an ornamental design of a power extension device;and,

FIG. 9 is a perspective view of a third embodiment, substantiallyidentical to FIGS. 1 through 7 of the first embodiment but showing aclip facing the back, of an ornamental design of a power extensiondevice.

CLAIM The ornamental design for a power extension device, as shown anddescribed.